Cartón Cordero, MartaCampos Gómez, MónicaFreund, Lisa P.Kolb, MarkusNeumeier, SteffenGöken, MathiasTorralba Castelló, José Manuel2022-04-262022-04-262018-09-12Materials Science and Engineering: A, (2018), v. 734, pp.: 437-444.0921-5093https://hdl.handle.net/10016/34619Título de la versión aceptada del artículo: Formation of a γ/γ' microstructure in Co-based superalloys produced by a powder metallurgy routeA Co-based superalloy, Co-9Al-9W (at%), was processed by mechanical alloying by high-energy milling of elemental powders and consolidated by field assisted hot pressing (FAHP). The milled powder particles mainly consist of undissolved bcc-W as well as WC and an Al and W rich fcc-γ Co solid solution. After consolidation and heat treatment a fine grained microstructure with a high fraction of carbides and a γ/γ′ microstructure was obtained. The compressive yield strength at room temperature was found to be 45% higher than that of previously reported results for Co-based superalloys. A similar level of strength was found at 700 °C. These extraordinary properties can be explained due to the multitude of hardening mechanisms that sintered Co-based superalloys possess: γ′ precipitation, carbide formation and the ultra-fine γ-grain size promoted by the fast consolidation technique.7eng© 2018 Elsevier B.V. All rights reservedAtribución-NoComercial-SinDerivadas 3.0 EspañaCo-Al-W superalloysPM routeMechanical propertiesNanoindentationMechanical millingMicrostructure and compression strength of Co-based superalloys hardened by γ' and carbide precipitationMicrostructure and compression strength of Co-based superalloys hardened by [gamma prima] and carbide precipitationFormation of a [gamma/gamma prima] microstructure in Co-based superalloys produced by a powder metallurgy routeresearch articleMaterialeshttps://doi.org/10.1016/j.msea.2018.08.007open access437444MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING734AR/0000022252